CN103077785B - Composite insulator - Google Patents
Composite insulator Download PDFInfo
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- CN103077785B CN103077785B CN201310004709.4A CN201310004709A CN103077785B CN 103077785 B CN103077785 B CN 103077785B CN 201310004709 A CN201310004709 A CN 201310004709A CN 103077785 B CN103077785 B CN 103077785B
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Abstract
The present invention discloses a kind of composite insulator, it include insulation tube, the sheath being coated on the outside of the insulation tube, at least one be arranged on the full skirt on the outside of the sheath and at least one be arranged on it is described insulation pipe end flange, the insulation tube has hollow cavity, solid dielectric insulation is filled with the cavity, wherein, the perforate connected with the cavity is offered on the flange, fixture for sealing is installed in the perforate, the dielectric is injected in the cavity by the perforate.By perforate is arranged on flange, by the cavity of solid dielectric insulation injection insulation tube, then it is fixedly mounted in perforate by fixture, realizes sealing such that it is able to easily.
Description
Technical field
The present invention relates to a kind of high voltage power transmission composite insulator, specifically a kind of inside being combined filled with dielectric
Insulator.
Background technology
What at present high voltage isolator was commonly used is true procelain support insulator, solid strut composite insulator, hollow fills
Gas formula post composite insulator and porcelain core post composite insulator.Wherein true procelain support insulator weight weight, transports and installs not side
Just, and in running it is susceptible to fracture of root and pollution flashover accident；Solid strut composite insulator adopts glass fibre
Epoxy resin leading-drawing rod as its skeletal support and interior insulation, as glass-epoxy material has toughness, under stress
Elastic deformation it is larger, it is impossible to meet the use requirement of isolated switchgear；Hollow inflatable formula post composite insulator is using empty
Core insulation pipe does column, and internal filling gas are insulated, as leakage easily occurs in gas filler, so monitoring dress must be filled
Put to monitor the change of interiors of products gas, but also there is certain potential safety hazard；Porcelain core composite post insulator its manufacture
Method is that the full skirt that silicone rubber synthetic material makes is bonded on porcelain core, as porcelain core is processed into without precision optical machinery, its
Present on surface microscopic it is concavo-convex easily cause silicon rubber umbrella skirt bonding loosely, produce the phenomenon such as bubble, affect the electric of product
Performance and life-span.
In view of the drawbacks described above of insulator, Chinese patent announces No. 03131607.7, discloses a kind of high voltage power transmission
Use composite post insulator.It is made up of flange, plug, umbrella cover, and several umbrella covers, described plug are housed in the outer cover of plug
It is made up of insulation sleeve, implant, insulation sleeve is hollow pipe made by epoxy glass fiber winding.Implant inside insulation sleeve is
The solid dielectric insulation of epoxy resin and quartz sand or crushed crude pearlite.The composite post insulator processing when, by solid insulation
After medium injection insulation sleeve, upper flange is installed with binding agent at insulation sleeve two ends, so as to realize sealing.Due to having used solid exhausted
Edge medium, is prevented from the leakage of dielectric, dependable performance.However, this composite post insulator is directly by solid insulation
Filled Dielectrics enter in insulation sleeve, not easy to operate, and the waste of dielectric is easily caused in filling.
The content of the invention
For the deficiencies in the prior art, an object of the present invention is to provide a kind of composite insulator be easy to and process.
For achieving the above object, the technology used in the present invention means are as follows：A kind of composite insulator, including insulation
Pipe, the sheath being coated on the outside of the insulation tube, at least one are arranged on the full skirt on the outside of the sheath and at least one set
The flange in the insulation pipe end is put, the insulation tube has in hollow cavity, the cavity and interior filled with solid insulation
Medium, wherein, the perforate connected with the cavity is offered on the flange, the fixation for sealing is installed in the perforate
Part, the dielectric are injected in the cavity by the perforate.
By perforate is arranged on flange, such that it is able to easily by solid dielectric insulation inject insulation tube cavity in,
Then it is fixedly mounted in perforate by fixture, realizes sealing.
Preferably, the first gap is formed between the fixture and the perforate, filled with sealing in first gap
Material.By further arranging sealing material, extraneous steam is prevented from into inside insulation tube, improves the use longevity of product
Life.
Preferably, the sealing material is silicone rubber.
Preferably, the silicone rubber is room temperature vulcanized silicone rubber.
Preferably, the fixture integral installation enters in the perforate, and the sealing material is completely covered the fixture
Top, the fixture and ambient atmosphere are kept apart.
Preferably, the fixture forms the second gap between one end of the cavity and the perforate, and described
Adhesive is filled with two gaps.By arranging adhesive, the secondary seal to flange is realized.Dual-seal to flange, greatly
The earth improves the sealing property of composite insulator.
Preferably, it is threaded on the fixture, the adhesive was coated in institute before fixture installation
State on screw thread.
Preferably, the adhesive is epoxy glue.
Preferably, the perforate and the fixture be it is step-like, the fixture in the vertical include head and from
The head extends and the less bar portion of size, forms first step portion between the head and the bar portion in the horizontal；Institute
State exit orifice and endoporus that perforate includes that the head and bar portion with the fixture be respectively cooperating with the vertical, the exit orifice and described
Form second step portion corresponding with the first step portion between endoporus in the horizontal.
Preferably, form the first gap between the exit orifice of the head of the fixture and the perforate in the horizontal, it is described
Filled with sealing material in first gap, sealing ring in the bar portion, is arranged with, the sealing ring is folded in the First
In the second gap that rank portion and the second step portion are formed in the vertical.
Preferably, the sealing material is room temperature vulcanized silicone rubber.
Description of the drawings
The structurally and operationally mode and further objects and advantages of the present invention is by by description below in conjunction with the accompanying drawings
It is better understood, wherein, identical reference mark identical element：
Fig. 1 is the sectional view of the composite insulator according to first embodiment of the invention, wherein, do not pacify in the perforate of flange
Dress fixture；
Fig. 2 is the decomposing schematic representation of the flange and fixture of composite post insulator shown in Fig. 1；
Fig. 3 is the partial sectional view after fixture shown in Fig. 2 is arranged on flange；
Fig. 4 is the exploded pictorial of the flange and fixture of the composite post insulator according to second embodiment of the invention
Figure；
Fig. 5 is the partial sectional view after fixture shown in Fig. 4 is arranged on flange；
Fig. 6 is the exploded pictorial of the flange and fixture of the composite post insulator according to third embodiment of the invention
Figure；
Fig. 7 is the partial sectional view after fixture shown in Fig. 6 is arranged on flange.
Specific embodiment
As requested, the specific embodiment of the present invention will be disclosed here.It is to be understood, however, that described herein
Embodiment be only the present invention exemplary, which can be presented as various forms.Therefore, what is disclosed here is concrete thin
Section is not to be considered as limiting, and is merely possible to the basis of claim and as instructing those skilled in the art
By in practice it is any it is appropriate in the way of differently using the representational basis of the present invention, including using described herein various
Feature simultaneously combines the feature that clearly may do not disclosed here.
As shown in Figure 1 to Figure 3, be first embodiment of the invention composite post insulator 100, be applied to keep apart
Close.Which includes longitudinally disposed insulation tube 10, the sheath 11 being coated on the outside of insulation tube 10, some is arranged on the outside of sheath 11
Full skirt 12 and it is arranged on the flange 13 at 10 two ends of insulation tube.Insulation tube 10 has in hollow cavity 101, cavity 101 and interior fills out
Filled with solid dielectric insulation 14.
In present embodiment, insulation tube 10 is the glass fiber yarn wound and solidified molding with epoxy resin-impregnated glue.Should
It is understood by, above-mentioned insulation tube 10 can also be replaced with vinyl material or polyurethane material winding pipe.
In present embodiment, sheath 11 and full skirt 12 be with high-temperature silicon disulfide rubber as material overall vacuum injection moulding,
Then stick to the outside of insulation tube 10.It is understood that sheath 11 and full skirt 12 can also split molding, both materials
Room temperature vulcanized silicone rubber or fluid silicone rubber can also be selected.
In present embodiment, solid dielectric insulation 14 is the foam of polyurethane material.It is understood that solid insulation is situated between
Matter 14 can also be the mixture of quartz sand and epoxy resin, or for the mixture of swelling perlite powder and epoxy resin.
As depicted in figs. 1 and 2, in present embodiment, the two ends of composite post insulator 100 have a flange respectively
13, the structure of two flanges 13 is identical.Flange 13 includes pedestal 131, the circle set 132 being connected on pedestal 131, and is arranged on base
Reinforcement 133 between seat and circle set 132.Wherein, pedestal 131 is substantially in the form of annular discs, and circle set 132 hangs down from the middle part of pedestal 131
It is straight to extend, several installing holes 134 being uniformly distributed along the circumference are further opened with the outer peripheral edge of pedestal 131.The two ends of insulation tube 10 point
And Qian Ru not be mutually bonded in the circle set 132 of companion flange 13.It is understood that flange 13 can also set at least to one
It is individual, reinforcement 133 can also be not provided with flange 13.
As shown in Figures 2 and 3, the perforate 15 connected with the cavity 101 of insulation tube 10 is offered on flange 13, and in perforate
Fixture 16 for sealing is installed in 15.Dielectric 14 is injected by perforate 15 in the cavity 101 of insulation tube 10.Pass through
On flange 13 arrange perforate 15, such that it is able to dielectric 14 is injected insulation tube 10 easily cavity in, then pass through
Fixture 16 is fixedly mounted in perforate 15, realizes sealing.
Fixture 16 is in step column, and which includes head 161 in the vertical and extends from head 161 and the less bar of size
Portion 162, forms first step portion 163 in the horizontal between head 161 and bar portion 162.Perforate 15 includes and fixation in the vertical
Exit orifice 151 and endoporus 152 that the head 161 and bar portion 162 of part 16 is respectively cooperating with, between exit orifice 151 and endoporus 152 in the horizontal
Form the 163 corresponding second step portion 153 of first step portion with fixture 16.Wherein, the head 161 and bar portion of fixture 16
162 radial dimension is respectively less than the radial dimension between the exit orifice 151 and endoporus 152 of perforate 15.
After fixture 16 is installed in perforate 15, first step portion 163 is abutted in second step portion 153, head 161 with
Form the first gap 17 between exit orifice 151 in the horizontal, between bar portion 162 and endoporus 152, form the second gap 18 in the horizontal.
In order that fixture 16 forms good sealing with perforate 15, filled with sealing material 171 in the first gap 17, between second
Adhesive 181 is filled with gap 18.By sealing material 171 being arranged in the first gap 17, can effectively prevent composite post
Operationally, extraneous steam is entered inside insulation tube 10 insulator 100, improves the service life of product.By in the second gap
Adhesive 181 is set in 18, the secondary seal to flange 13 is realized.Perforate 15 to flange 13 carries out dual-seal, greatly
Improve the sealing property of composite post insulator 100.
In present embodiment, above-mentioned sealing material 171 is silicone rubber, preferably room temperature vulcanized silicone rubber；Above-mentioned adhesive
181 is epoxy glue.It is understood that sealing material 171 can also select other materials, such as high-temperature silicon disulfide rubber, liquid
Silicone rubber, fluorine-containing silicone rubber etc.；Adhesive 181 can also select the other materials of epoxy glue property of the same race to replace.
, in processing, its encapsulating method is as follows for composite post insulator 100：
1. the flange 13 for being machined with the perforate 15 connected with cavity 101 is arranged on into 10 end of insulation tube first；
2. and then dielectric 14 is injected in the cavity 101 of insulation tube 10 by perforate 15；
3. install in perforate 15 finally by fixture 16, seal and opening 15.
Above-mentioned steps 3. in, pour adhesive 181 first in perforate 15 into, after fixture 16 is screwed into, adhesive 181 is filled out
The gap between fixture 16 and the dielectric 14 in cavity 101 is mended, and overflows bar portion 162 and the perforate 15 in fixture 16
Endoporus 152 between the second gap 18 for being formed, adhesive 181 plays sealing function after solidifying.
Specifically, in present embodiment, fixture 16 is bolt, and its outer surface is provided with external screw thread, and the correspondence of perforate 15 is fixed
The external screw thread of part 16 is formed with female thread；Above-mentioned adhesive 181 is epoxy glue, and its amount for pouring perforate 15 into reached higher than flange hole
Three～tetra- tooth of screw thread, after fixture 16 is screwed into perforate 15, between adhesive 181 is full of between above-mentioned female thread and external screw thread
Gap.
Above-mentioned steps 3. in, fixture 16 be screwed into perforate 15 and fill adhesive 181 after, the head 161 of fixture 16
The first gap 17 is also formed with and the exit orifice 151 of perforate 15 between.And then, sealing material 171 is inserted in the first gap 17,
Sealing material 171 just plays a part of dual-seal with adhesive 181 after solidifying.
It may be noted that the composite post insulator of the present invention is not limited to the concrete structure in present embodiment.Flange
Perforate only can be installed by fixture and be sealed, it is also possible to sealing material is arranged after fixture is installed, it is also possible to while arranging
Sealing material and adhesive.The shape of fixture and perforate is also not necessarily limited to step-like, it is also possible to be only provided to column, cylinder or
Prism can.Fixture is with perforate before filling sealing material, it is also possible to the first setting sealing between fixture and perforate
Circle, equally realizes the effect of dual-seal.
With reference to Fig. 4 and Fig. 5, the second embodiment of composite post insulator of the present invention is briefly described.This embodiment party
In formula, the structure of flange 23 is similar to the structure of the flange 13 in embodiment one, and difference is the perforate on flange 23
25 is cylindric.Correspondingly, the fixture 26 in present embodiment is similarly radial dimension and is less than the cylindric of perforate 25.
Height of the height of fixture 26 less than perforate 25, after fixture 26 installs perforate 25, the top of fixture 26
End is absorbed in perforate 25.Form the first gap 27 between the top of fixture 26 and perforate 25, the other end of fixture 26 with open
The second gap 28 is formed between hole 25.
It is identical with first embodiment, sealing material 271 is filled in above-mentioned first gap 27, in above-mentioned second gap 28
Interior filling adhesive 281.It is concrete when processing, first by adhesive 281 fill and between sealing fixture 26 and perforate 25 the
Two gaps 28, are subsequently filled sealing material 217 and the top of fixture 26 are completely covered, most fixture 26 and ambient atmosphere at last
Keep apart, realize the dual-seal to perforate 25.
Fig. 6 and Fig. 7 is referred in the lump, briefly describes the 3rd embodiment of composite post insulator of the present invention.This embodiment party
In formula, flange 33 is provided with perforate 35, and fixture 36 is arranged in perforate 35.It is identical with first embodiment, 36 He of fixture
Perforate 35 is step-like, and fixture 36 includes head 361, bar portion 362 and first step portion 363, and perforate 35 is set corresponding
It is equipped with exit orifice 351, endoporus 352 and second step portion 353.
Difference is, the bar portion 362 of fixture 36 and the endoporus 352 of perforate 35 are tight fit, and fixture 36 only exists
The first gap 37 is formed between its head 361 and the exit orifice 351 of perforate 35.And before mounting fixing parts 36, in its bar portion
Sealing ring 38 is arranged with 362.After fixture 36 is installed, sealing ring 38 is folded in first step portion 363 and second step portion
Between 353；The last filling sealing material 371 in the first gap 37 simultaneously solidifies, so as to form the dual-seal to perforate 35.
It may be noted that the concrete material of the sealing ring 38 in above-mentioned embodiment is not limited, EPDM, silicon rubber can be selected
The materials such as glue, fluorubber.
The technology contents and technical characterstic of the present invention have revealed that as above, it being understood, however, that in the creative ideas of the present invention
Under, those skilled in the art can be made various changes and be improved to said structure and material, including individually disclosing here or will
Ask the combination of the technical characteristic of protection, it will be apparent that including other combinations of these features.These deformations and/or combination each fall within this
In the involved technical field of invention, and fall into the protection domain of the claims in the present invention.
Claims (9)
1. described in a kind of composite insulator, including insulation tube, the sheath being coated on the outside of the insulation tube, at least one are arranged on
Full skirt and at least one on the outside of sheath is arranged on the flange of the insulation pipe end, and the insulation tube has hollow cavity,
Solid dielectric insulation is filled with the cavity, it is characterised in that：The perforate connected with the cavity is offered on the flange,
Fixture for sealing is installed in the perforate, the dielectric is injected in the cavity by the perforate, described
The first gap is formed between fixture and the perforate, filled with sealing material in first gap.
2. composite insulator as claimed in claim 1, it is characterised in that：The sealing material is silicone rubber.
3. composite insulator as claimed in claim 2, it is characterised in that：The silicone rubber is room temperature vulcanized silicone rubber.
4. composite insulator as claimed in claim 1, it is characterised in that：The fixture integral installation enters in the perforate,
The sealing material is completely covered the top of the fixture, and the fixture and ambient atmosphere are kept apart.
5. composite insulator as claimed in claim 1, it is characterised in that：The fixture is near one end of the cavity and institute
State, in second gap, be filled with adhesive.
6. composite insulator as claimed in claim 5, it is characterised in that：It is threaded on the fixture, it is described gluing
Agent was coated on the screw thread before fixture installation.
7. composite insulator as claimed in claim 5, it is characterised in that：The adhesive is epoxy glue.
8. composite insulator as claimed in claim 1, it is characterised in that：The perforate and the fixture be it is step-like,
The fixture includes head in the vertical and extends and the less bar portion of size, the head and the bar portion from the head
Between form first step portion in the horizontal；The perforate includes matching somebody with somebody with the head and bar portion of the fixture respectively in the vertical
The exit orifice and endoporus of conjunction, forms corresponding with the first step portion second in the horizontal between the exit orifice and the endoporus
Rank portion.
9. composite insulator as claimed in claim 8, it is characterised in that：The head of the fixture and the exit orifice of the perforate
Between form the first gap in the horizontal, in first gap filled with sealing material, be arranged with sealing ring in the bar portion,
The sealing ring is folded in the second gap that the first step portion and the second step portion are formed in the vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004709.4A CN103077785B (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004709.4A CN103077785B (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103077785A CN103077785A (en) | 2013-05-01 |
| CN103077785B true CN103077785B (en) | 2017-03-29 |
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ID=48154288
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004709.4A Active CN103077785B (en) | 2013-01-07 | 2013-01-07 | Composite insulator |
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| Country | Link |
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| CN (1) | CN103077785B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208570227U (en) * | 2018-06-20 | 2019-03-01 | 江苏神马电力股份有限公司 | A kind of flange and insulator and insulation column |
| CN109390113B (en) * | 2018-12-12 | 2020-08-28 | 江苏神马电力股份有限公司 | Flange, sealing method thereof and insulator using flange |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760722Y (en) * | 2004-12-08 | 2006-02-22 | 徐卫华 | Rubber porcelain composite support insulator |
| CN201340766Y (en) * | 2008-12-05 | 2009-11-04 | 南方电网技术研究中心 | Flange for ultra-high voltage post composite insulator |
| CN201749749U (en) * | 2010-07-29 | 2011-02-16 | 南通市神马电力科技有限公司 | Optical fiber composite insulator |
| CN203103026U (en) * | 2013-01-07 | 2013-07-31 | 江苏神马电力股份有限公司 | Composite insulator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11329121A (en) * | 1998-05-19 | 1999-11-30 | Ngk Insulators Ltd | Flange metal fitting structure of polymer insulator tube |
| JPH11329120A (en) * | 1998-05-19 | 1999-11-30 | Ngk Insulators Ltd | Press-fit joining method of frp tube of polymer insulator tube with flange metal fitting |
-
2013
- 2013-01-07 CN CN201310004709.4A patent/CN103077785B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2760722Y (en) * | 2004-12-08 | 2006-02-22 | 徐卫华 | Rubber porcelain composite support insulator |
| CN201340766Y (en) * | 2008-12-05 | 2009-11-04 | 南方电网技术研究中心 | Flange for ultra-high voltage post composite insulator |
| CN201749749U (en) * | 2010-07-29 | 2011-02-16 | 南通市神马电力科技有限公司 | Optical fiber composite insulator |
| CN203103026U (en) * | 2013-01-07 | 2013-07-31 | 江苏神马电力股份有限公司 | Composite insulator |
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| Publication number | Publication date |
|---|---|
| CN103077785A (en) | 2013-05-01 |
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